The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2015
Filed:
Apr. 01, 2014
Applicant:
Skyworks Solutions, Inc., Woburn, MA (US);
Inventors:
Ping Li, Dunstable, MA (US);
Paul T. DiCarlo, Marlborough, MA (US);
Assignee:
SKYWORKS SOLUTIONS, INC., Woburn, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/30 (2006.01); H03F 3/19 (2006.01); H03F 3/21 (2006.01); H03G 3/00 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H03F 3/21 (2013.01); H03F 3/19 (2013.01); H03F 3/24 (2013.01); H03G 3/007 (2013.01); H03G 3/3042 (2013.01);
Abstract
Apparatus and methods for biasing a power amplifier are disclosed. In one embodiment, a method of biasing a power amplifier includes shaping an enable signal using a time-dependent signal generator to generate a control current, amplifying the control current using a current amplifier to generate a correction current, and generating a bias current for a power amplifier using a primary biasing circuit. The primary biasing circuit is configured to use the correction current to correct for a variation in gain of the power amplifier when the power amplifier is enabled.